The moon was a silver dollar is definitely a metaphor. Remember that for something to be a simile it must be preceded by like or as.
a simile is compared with "like" or "as", a metaphor is comparing using is, or without "like or "as". The moon during harvest looks like a great pumpkin in the sky. - Simile The harvest moon is a great pumpkin in the sky. - Metaphor
This is a simile because it uses the word "as" to describe the library. A metaphor does not use the words "like" or "as" to describe a noun.
A Metaphor is a word you use its like say if I said: "The Moon IS cheese!" It doesn't mean it IS. its just a way of describing it. But if you but it is LIKE something then its called a simile.
On the reverse of the bicentennial silver dollar is the Liberty Bell super-imposed over and image of the moon.
the liberty bell in front of the moon
40th Anniversary Apollo 11 Moon Landing Silver Eagle Dollar CoinTLA was here
The moon was as cresent as a moon.......
That's the bicentennial dollar, extremely common, and still worth one dollar.
Yes, I have the Republic of the Marshall Islands "First Men on the Moon" $5 Commemorative Coin
The moon is a glowing beacon in the night sky, like a silver coin suspended in darkness. Its gentle light illuminates the world below, casting a dreamy ambiance over the landscape.
The reverse of the SBA dollar is more-or-less a smaller-scale version of the image on the back of the Eisenhower dollar: an eagle landing on the Moon.
A cue ball